How to save the database
Guide to taking a snapshot of the etcd database
snapshot to save point-in-time snapshot of etcd database:
Snapshot can only be requested from one etcd node, so --endpoints flag should contain only one endpoint.
ENDPOINTS=$HOST_1:2379
etcdctl --endpoints=$ENDPOINTS snapshot save my.db
Snapshot saved at my.db
etcdctl --write-out=table --endpoints=$ENDPOINTS snapshot status my.db
+---------+----------+------------+------------+
| HASH | REVISION | TOTAL KEYS | TOTAL SIZE |
+---------+----------+------------+------------+
| c55e8b8 | 9 | 13 | 25 kB |
+---------+----------+------------+------------+
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